Solve the system of equations by the substitution method. Check your solutions. For any dependent equations, write your answer in ordered pair form. x + y = 37x + 7y = 21
A. ?
B. {(5, -2)}
C. {(x, 3 - x)}
D. {(0, 0)}
Answer: C
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Solve the problem.In the town of Chesapeake, the temperature during the month of February was always within 16 degrees of the average temperature which was 43 degrees Fahrenheit. Write an absolute value inequality that describes the possible values of T, a temperature in Chesapeake during the month of February. Solve the inequality.
A. 
? 43
Temperatures range from -27° F to 59° F.
B. 
? 43
Temperatures range from 27° F to 59° F.
C. 
? 16
Temperatures range from 27° F to 59° F.
D. 
? 16
Temperatures range from 43° F to 59° F.
When managers make decisions that are in their own best interests, rather than the best interests of their company, they are
A. acting entrepreneurially B. acting strategically C. acting opportunistically D. none of these
Solve the problem.A chemist has prepared two acid solutions, one of which is 4% acid by volume, another 11% acid. How many cubic centimeters of each should the chemist mix together to obtain 50 cm3 of 
solution?
A. 3.19 cc of the 4% solution; 46.81 cc of the 11% solution B. 20 cc of the 4% solution; 20 cc of the 11% solution C. 33 cc of the 4% solution; 17 cc of the 11% solution D. 46.81 cc of the 4% solution; 3.19 cc of the 11% solution
Classify the polynomial as a monomial, binomial, trinomial, or some other polynomial.8b6 - 10b2 - 4
A. Trinomial B. Binomial C. Monomial D. Other polynomial